State profile · Near median Poor share

Illinois bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.

27,743
Public bridges
41.2%
Good condition
7.9%
Poor condition

Data updated May 2026

Total Bridges

27,743

Public highway bridges in Illinois

Good Condition

41.2%

11,426 bridges rated 7-9

-8.8pp vs 50% benchmark

Poor Condition

7.9%

2,186 bridges whose lowest applicable component is rated 0-4

0.9pp vs national avg 7.0%

Illinois vs national bridge condition

Illinois - Good condition share 41.2%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Illinois - Poor-condition share 26.3%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Illinois vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.

RI

Rhode Island

7.69% top marginal rate
Structure
Progressive
Burden @ $100K
$78

NE

Nebraska

7.73% top marginal rate
Structure
Progressive
Burden @ $100K
$15,571
Selected

IL

Illinois

7.88% top marginal rate
Structure
Progressive
Burden @ $100K
$27,743

MA

Massachusetts

7.96% top marginal rate
Structure
Progressive
Burden @ $100K
$5,314

MO

Missouri

8.53% top marginal rate
Structure
Progressive
Burden @ $100K
$24,654

Bridges Needing Most Attention in Illinois

Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Illinois

TR 113

Fair

Over: E FORK OTTER CREEK

4 MI W OF NILWOOD, Macoupin, IL

Built 1984 Load: 34.0 t ADT: 50

FAI 70 EB

Fair

Over: BRANCH OF SILVER CRK

1.25 M W ILL 4, Madison, IL

Built 1964 Load: 34.0 t ADT: 15,300

ILL 111

Fair

Over: CAHOKIA DIVERSN CNL

3 M N 270, Madison, IL

Built 1940 Load: 34.0 t ADT: 4,000

IL 159

Fair

Over: Mooney Creek

Just N. of IL 143, Madison, IL

Built 1937 Load: 34.0 t ADT: 6,550

FAS 766/ FRUIT RD.

Fair

Over: SAND CREEK

2.8 MI. W. GRANTFORK, Madison, IL

Built 1959 Load: 34.0 t ADT: 425

FAS-1793 (CH-9)

Fair

Over: TURKEY CREEK

0.6 MI S ODIN, Marion, IL

Built 1983 Load: 34.0 t ADT: 625

ILL 18

Fair

Over: SANDY CR

0.1 W OF ILL 26, Marshall, IL

Built 1975 Load: 34.0 t ADT: 2,200

FAS 356 CH 23

Fair

Over: TURKEY CREEK

1.0 MI N LEXINGTON, McLean, IL

Built 1932 Load: 34.0 t ADT: 800

TR 183

Fair

Over: LITTLE CREEK

1.5 MI NE IRVING, Montgomery, IL

Built 1984 Load: 34.0 t ADT: 25

IL 104

Fair

Over: WOODS CREEK

2.98M W IL 111, Morgan, IL

Built 1934 Load: 34.0 t ADT: 2,300

COLUMBINE ROAD

Fair

Over: BR. LEAF RIVER

2.0 NE FOR RESTON, Ogle, IL

Built 1978 Load: 34.0 t ADT: 100

EAGLE POINT RD

Fair

Over: EAGLE CREEK

5.4 W POLO, Ogle, IL

Built 1977 Load: 34.0 t ADT: 175

TR 195

Fair

Over: STREAM

2.0 MI NNW HAMMOND, Piatt, IL

Built 1965 Load: 34.0 t ADT: 25

TR 203

Fair

Over: STREAM

1.0 MI NE LA PLACE, Piatt, IL

Built 1959 Load: 34.0 t ADT: 50

I 57 SB & US 51 SB

Fair

Over: CACHE RIVER OVERFLOW

3.2 MI S UNION CO, Pulaski, IL

Built 1964 Load: 34.0 t ADT: 6,900

IL 203

Fair

Over: DRNG TO CAHOKIA CNL

0.1 M N OLD US 40, St. Clair, IL

Built 1960 Load: 34.0 t ADT: 3,500

ILL 177

Fair

Over: Reinhardt SLOUGH

1.4M E OF JCT IL 4, St. Clair, IL

Built 1994 Load: 34.0 t ADT: 2,450

SCOTT-TROY/ FAU 91

Fair

Over: ENGLE CREEK

1.65MI N U.S.RTE 50, St. Clair, IL

Built 1973 Load: 34.0 t ADT: 9,250

IL 122

Fair

Over: CRANE CREEK TRIB

4 MI W OF DELAVAN, Tazewell, IL

Built 1991 Load: 34.0 t ADT: 475

FAS 512(CH 8)

Fair

Over: JORDAN CREEK

N OF FAIRMOUNT, Vermilion, IL

Built 1958 Load: 34.0 t ADT: 1,900

TR 243

Fair

Over: FEATHER CREEK

1.5 MI N MUNCIE, Vermilion, IL

Built 1965 Load: 34.0 t ADT: 50

US 34 & 67 (SB)

Fair

Over: BNSF RR (079039A)

0.8MI N JCT US 34&67, Warren, IL

Built 1992 Load: 34.0 t ADT: 8,100

HURD RD

Fair

Over: ROCK RIVER

AT HILLSDALE, Whiteside, IL

Built 1953 Load: 34.0 t ADT: 600

COVELL RD

Fair

Over: LITTLE ROCK CREEK

7 MI N MORRISON, Whiteside, IL

Built 1980 Load: 34.0 t ADT: 100

ILL 2

Fair

Over: DRAINAGE DITCH

.05 S WISC ST LN, Winnebago, IL

Built 1958 Load: 34.0 t ADT: 13,000

ILL 251 N B

Fair

Over: DRY CREEK

.32 MI N MCCURRY RD, Winnebago, IL

Built 1967 Load: 34.0 t ADT: 16,600

ILL 251 S B

Fair

Over: DRY CREEK

.32 MI N MCCURRY RD, Winnebago, IL

Built 1967 Load: 34.0 t ADT: 16,600

AUBURN RD

Fair

Over: BR OF KENT CREEK

0.3 MI W OF MERIDIAN, Winnebago, IL

Built 1983 Load: 34.0 t ADT: 1,300

CH 21

Fair

Over: CURTIS CREEK

S CITY LIMITS QUINCY, Adams, IL

Built 1954 Load: 34.3 t ADT: 4,950

US 6

Fair

Over: ADAMS CREEK

IN SEATONVILLE, Bureau, IL

Built 1986 Load: 34.3 t ADT: 2,000

ILL 84 (FAP 308)

Fair

Over: RUSH CREEK

3.1 MI S JO DAV CO, Carroll, IL

Built 1927 Load: 34.3 t ADT: 1,400

S WAGNER ROAD

Fair

Over: OTTER CREEK

3 MI SW MILLEDGEVILL, Carroll, IL

Built 1988 Load: 34.3 t ADT: 25

IL 10(FAU 7123)

Fair

Over: STREAM

W OF STALEY'S, Champaign, IL

Built 1983 Load: 34.3 t ADT: 3,750

FAP 709 (US 136)

Fair

Over: STREAM

2 MI E OF RANTOUL, Champaign, IL

Built 1984 Load: 34.3 t ADT: 3,750

SBI 16(FAU 7620)

Fair

Over: TOWN BRANCH

E EDGE CHARLESTON, Coles, IL

Built 1924 Load: 34.3 t ADT: 2,250

TR 112 A

Fair

Over: KICKAPOO CREEK

1.0 MI S OF AIRPORT, Coles, IL

Built 1980 Load: 34.3 t ADT: 250

I- 55 EB STEVENSON

Fair

Over: RR - BRC

0.3 M NE ILL 50, Cook, IL

Built 1963 Load: 34.3 t ADT: 67,900

IL 58 (GOLF RD)

Fair

Over: POPLAR CREEK

.06 M W IL 59, Cook, IL

Built 1977 Load: 34.3 t ADT: 11,800

CENTRAL AVE

Fair

Over: N BR CHICAGO RIVER

0.4 M S US 14, Cook, IL

Built 1993 Load: 34.3 t ADT: 16,400

JOE ORR RD

Fair

Over: DEER CREEK

0.5 M W I94 P2, Cook, IL

Built 1956 Load: 34.3 t ADT: 8,750

LAKE SHORE DR

Fair

Over: PEDESTRAIN UNDERPASS

5300 N.AND 800 W., Cook, IL

Built 1953 Load: 34.3 t ADT: 62,600

I-294 NB

Fair

Over: N&W RR

0.3 M SE ILL 7 P26, Cook, IL

Built 1958 Load: 34.3 t ADT: 66,500

I-294 SB

Fair

Over: N&W RR

0.3 M SE ILL 7 P26, Cook, IL

Built 1958 Load: 34.3 t ADT: 66,500

TR 64

Fair

Over: LONG POINT CREEK

4.5 M NE WAYNESVILLE, De Witt, IL

Built 1980 Load: 34.3 t ADT: 25

IL 72 FAP 553

Fair

Over: S BR KISHWAUKEE RIV.

W EDGE GENOA, DeKalb, IL

Built 1931 Load: 34.3 t ADT: 6,000

IL 72 FAP 553

Fair

Over: UNNAMED CREEK

0.3 MI. W. KIRKLAND, DeKalb, IL

Built 1991 Load: 34.3 t ADT: 2,150

I-57 (NB)

Fair

Over: DRAINAGE DITCH

.25 MI N OF GALTON, Douglas, IL

Built 1968 Load: 34.3 t ADT: 10,150

I-57 (SB)

Fair

Over: DRAINAGE DITCH

.25 MI N OF GALTON, Douglas, IL

Built 1968 Load: 34.3 t ADT: 10,150

FAP 749(IL 133)

Fair

Over: DRAINAGE DITCH

6 MI E OF ARCOLA, Douglas, IL

Built 1932 Load: 34.3 t ADT: 2,300

IL 130(FAP 820)

Fair

Over: SCATTERING FORK

0.9 MI N of 700N, Douglas, IL

Built 1948 Load: 34.3 t ADT: 2,000

Showing 10,551-10,600 of 27,743 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.